Type-writing machine.



G.. P. BALLOU.

TYPE WRITING MACHINE. APPLIOATION FILED MATS, 1905.

Patented July 27,4909.

' 5 nn'irnnsrnpss ramene? GEORGE FREDERICK BALLOU, OF NEW YORK, N. Y., ASSIGNOR TO WYCKOFF, SEAMANS &`

ormoni.

BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-'WRITING MACHINE Specification of Letters Eatent.

Patented July .27', 1909.

Application led May 8, 1905. Serial No. 259,358.

resident of New York city, in the borough of` Manl'iattan and State of New York, have invented certain new and useful Improvements in '.l`ype-Vilriting Machines, of which the following is a specification.

My invention relates to typewriting machines and has for its principal object to provide improved means. for releasing; the carriage and for contrdlling the s iced' with which the carriage moves when re eased.

My invention is more especially intended 15 for use as part of a talimlatingI mechanism.

My invention consists of certain features of construction and combinations and arrangements of parts which will be fully set forth herein and particularly pointed ont in the claims.

In the accompanying' drawings, Figure 1 is a front to rear sectional View of a portion of a typewriting machine havingr my invention embodied therein'. Fig. 2 is a top plan view of the same, artly in section. 3 is a dei tail as seen 'rom the front of the machine. Fig. 4 is a detail view of' a crank an d pitman asseen from the rear.

I have shown my invention applied. to a No. 6 Remington typewriter. As this machine is of well knmvn construction I have shown only-s o much the'reofas is necessary to illustrate the application of my invention thereto. The main frame of said typewriter comprises a top plate 1, and a carriage is mounted to move transversely across the machine. Said carriage has rollers 3 which run on a rail 4 which .is sup )orted from thc top plate by posts or brackets 5. A feed .rack Gis mounted on said carriage, being` supported by arms 7 which are pivotcd to the carriage at S. Said feed rack has gear teeth on the under side' thereof which-mesh with a feed pinion 9 which is 'fixed on a shaft that is 4 journaled in a housing- 10 secured to the top plate, and an'escapement wheel 11 mounted on said shaft is controlled by feed dogs in the usual manner. p The carriage is drawn across the machine by a spring drum. The construction is such that ordinarily a step-bystep feed of the carriage is afforded by the escapement mechanism, but the rack 6 may raised-the arrf,s 7 turning about their pivots, and the rack be thus disengaged from the pinion 9 of the step-by-step feed. i'nechanism.

The tabulatiln;mechanism coi'npriseide nomination stops 12 consisting of the upper ends of levers 13 which are pivoted in a frame which comprises :uprights 14 which come up behind the tcp plate and which are joined` at their upper ends by a transverse plate 15 in which are slots th rough which the stops 12 play, said slots serving to properly space said stops. "ihe stops 12 cooperate with column stops mounted on a tabula-tor bar which in lturn is mounted onthe carriage 2. The frame pieces 14 are suitably secured to the main frame of l(he machine and the levers 13 are controlled by denomination keys at the front of the machine tlnongh push rods extending beneath the character key levers. tabulator mechanism partly because they are well known and partly because their precise construction is immaterial so far as the present invention is concerned, this invention I have not shown these details of the n having to do with the means for releasing the carriage and for preventing it from moving; at too highv a speed when released.

The upper ends of the frame pieces 14 and of the levers 13 extend toward the front of the machine, as shown in Fig. 1. A univers sal banl lies in front ofthe levers 13 and be` loW the forward extensions of said levers. Said universal bar is in the nature of a yoke bar connecting,l two arms 17 which are pivoted on shouldered and headed screws 18 threaded into lugs or brackets 19 projectingtoward the front of the machine fromthe frame pieces 14.

I provide a dash pot cylinder having a to and fro moving piston therein connected with a crank onl a shaft having a pinion which is adapted to be moved into engagement with the rack 6 and to lift said rack. Said cylinder, the bearing for said shaft and a chamber for said crank are all preferably formed of a single casting tiltably mounted on trunnions. The dash pot cylinder 20 lies horizontally above the top plate on one side of the lions'- ing` 10 of the escapement mechanism. One end of said cylinder is .closed by a screw cap 21,a reduced extension 22 of which constitutes one of the trunnions referred to. Said trunnion is journaled ,in a bracket 23, the lower end 24 of which is' reduced =and passes' iet ' having the .inserted 1n t :1e cylinder, said pitman being as, 'indicated in Figfl.

through opening in the top plate 1. The bracket is secured in position by a nut 25 threaded on to the reduced portion 24. The onposite end of lthecylinder 20 opens into a chamber 26 which is closed' by a screw-cap 27 having a slot cut in its face for the insertion of e screwdriver. The screw-cap 27 `constitutes the rear wall of thc chamber 26 ln the processor manufacture the cylinder 2() may be bored out from the right-hand end an lthe chamber 'from the rear, the parts' eing subsequently closed by the caps 21 and 27. A trunnion 29 projects from the sidewall 30 of 'the chamber 6 and is journalcd in a bracket 31 similar to and mounted in the same manner as the bracket 23. 'lhe'casting 20, 80 has a forwardly extending portion 32 which constitutes a housing and bearing for ashait 33 on the forward end of which is mounted' a, pinion 34 which is secured to said shaft by a' in 35 passing through said shaft and the i ub .of said pinion. the shaft 33 carries a wheel or cranl'e ish 3G, from w lich proj ects a crank pin 347 which is connected by a pitman 33 with a pin 39 in a iston which is adapted 'to playback and iorth in the cylinder 2G. The face of the pis* ton 4() next to the chamber 25de chambered out as shown in F 2, and the pin 39 passes through said `chambered portion, said pin' having atight iit in suitabe openings inthe walls ci the piston. ',lfne pin 39 passes looseiy through. an opening 41 (Fig. 4) in the pitman yln assembling the parts the shalt 33 is put m position and the iston 40 itman 38 mounted tiereon is slid over towardA the rear end of the pin 39. The pitman is then pushed back over the crank pin 3?", sliding into its operative position on the pin 39, and said pitman is retained in this position by a latch or retaining device 42. Said device consists of a plate or" metal mounted on the rear side of the pitman 33 by means of a headed screw 43.v Said plate has an open-ended slot therein, the width of which is less than the diameter of' the crank pin, and in the crank pin is formed an annular groove 44 (Fig. 2) into which the plate 42 is turned. Said plate is then secured in position by tightening the screw 43. Vl."he plate 42 prevents any 1`notion oi' the pitman in a iront or back direction. j

The screw-cap 21 and trunnion 22 have a central longitudinal opening through which passes a piston rod 45 of the piston 40. Said r pistoii rod extends out through the end oi the trunniorn kas shown in Fig'. 2. Said piston rod has allengitudinal bore 45 which is open at the'outer end of said rod, but does not ex tend through the piston. 'Said bore is connected by an openiarg,n or port 47 with that par of the eylinderzwlrich is back of the pis- "i/Vithin the-chamber 26 ton 40. The outer end of the bore 45 is tapered to receive a tapered valve 48 forming part of the hub of a screw 49 which is threaded into the bore 46. Said screw also has a milled head 50 for adjusting the same. A slot 51 in the screw 49 terminates about midway of the tapered valve 48,*and said slot serves as a vent for the portion of the cylinder 20 behind the piston 46, and the size of said vent may be'regulated by adjusting the screw 49 by means of the milled head 50.

A port or opening 52 is formed in the side of the cylinder 2O about midway of its length in such position that when the piston is at one end of its stroke, said port opens into the ,outer end ol the cylinder and when the piston is at .the other end of its stroke said port op ens into the and of the cylinder connected with A bracket 53 projects from the casting' 20,'

30 into position to be engaged by the lower end of a screw 54 which is threaded through an. arm 55 projecting' toward the iront of the machine from one of the arms 17 of the universal bar 16. The screw 54 is provided with a lock nut 56. p The construction is such that when any tabulator stop is moved toward the front of the machine into operative position, the rear end of the trunnioned member will be depressed and the irward end carrying the pinion 34 will be elevated, thus raising said pinion into engagement with the rack 6. The screw 54 is so adjusted that the pinion 34 is not only raised into engagement with the rack 6 but also raises said rack out of engagement with the pinion 9, thus releasing the carriage from the step-bystep feed device. The trunnioned member is held in its normal 'position by a iiat spring)y 57 which is secured by screws -58 to the top plate of the machine and which presses up beneath the bracket 53. Said spring presses the pinion 34 into engagement with an arresting and positioningr tooth or bracket 59 which is secured by screws 60 to. the top plate 1. As shown in Fig. 2, the screws 60 pass through elongated slots in the bracket 59 so that said bracket may be adjusted in a direction toward or from the pinion .34. The

upper edge of said bracket serves as a tooth w lich enters the space between two of the teeth of the pinion, thus positioning the pinion when in itsl normal position. By adjusting the bracket 59 before the screws 60 'are tightened, the normal.position= of the pinion 34 may be made such that When'said pinion is raisedI into engagement with the rack 6 its teeth will mesh properlyr with the teeth of said rack.

In operation one of the tabulator levers 13 is moved toward the front of the machine by a tabulator key or by whatever means are provided for the purpose, thus moving one device.

@esteri tasted, and the piston 4() is moved to and li'o in the cylinder 20. .lhc outer end oi sind cylinder acts as a dash not, the nir comiessed therein escaping; thronfjli the slot 51.

uriner the outvverd strolzc of the piston n. partial vacuum will he formed in the nearly closed chamber, which vacuum coi'irihntes toward retarding the piston.. it this imi-tial vacuum continued zitter the ontmird strelen of the iiston was completed end the return stroke lacgun it would tend tonccclerfitc the return stroke of the piston; hut 'cl'nn'i the niston reaches its extreme outer position the port 52 is opened into the chainlfer thus admitting nir to fill thc pei-tial vacuum so that on thc return sti'olre of thc piston it is `compressinnr the air witl'iin Ji-hc che-rimer.

@n said return stroke of thel piston there is also c certiiin amount ofsuotion in thc outer end of the cylinder, hut `when the piston reaches its extremo iniiecposition the port 52 is opened into seid cylinder, thus illinp; the partiiilivecuuni. The port Si? thus Jclays o very important part in the operation of n. to and fro moving dash pot device of this cherncter,`, 'l have not shown ini adjustable vent inthe chamber 2G, hut the tir leaks into and out of sind chinnhcr around the shaft 33- 'andthe cap 27; 1 shell, therefore, refer to this in the claims as :i nein-ly closed chfinihcr, nieaning that said chamber is not absolutely nietight but that it has about the amount of lechage that Iis needed in a dash pot.

When the carriage is arrested hy the tabulntor stops the'tehuhitor key is released and the parts :1re restored to normal. position by the spring" 57, thus disconnecting' the carriage from the-returning device :ind connecting it with the step-hy-step feed device.

Various changes may he mede in the details of construction and arrangement witl outl departing from my invention. X

Whitt I claim as new end desire tonseciiie by Letters Petenthiszi. In a typewriting machine, the conihnation oi c carriage; a ste vice for said carriage, e. i. ash-pot retarding device; means for simultaneously releasing said carriage from said steP-hy-step feed dcvicefand coiinectiifig` it with seid dash-pot retsiiding device, and ineens for continually reciprocating a part of said dash-pot device during thc motion of the carriage in vone direction.

2. ln e typcWi-,iting machine, thc conihination of e carriage; o sicp-hy-stcp feed device for sind carriage a talnilntor mechanism,

-hy-step feed def.

desir-pot retarding device, and ineens ily reciprocating :i part of said dash i, dei ce during;n the :notion oi the c :irriege nrcction.. y

:t typen* ring machine, the coinhil' e carriage; :i stcp-hy-step feed device ioisind ce" :i tnhnlixtor mechanism 3 si dnsivgio 3 a gc. onncofcd With sziid dnsl not; incins operen d geni' continually Y .11d dnshepot during` le' seid eliuliitor nicchz'niisin for releasing .1 curr nrc from its steydiy-step leed de- -vzce :inn connecting sind gear with said carrninjc.

li. ln n typcwiiting inechine, the

combination oi .nrriegcg dash-pct; gearing for connecting; seid sli-pot with sind ci-rriii-ge; sind incnns operated hy said gcorinp; for'contininilly recipri)cartine a part of said dash-pot rcction.. i

5. ln a iiypi`wriiing iimcliine, the combination of n. c..-iri'i:igc; e dash-pot; gearing for coin'icctingj seid lnsli-pot with seid carriage; ineens operated liy said' gearing for contnnelly reciprocating; n port of seid dash-pot during the mot-.ion oi' the carriage in one direction; and means for coupling up and uncoupling` seid gearing.

6. ln ey type\vii.;-ing machine, the combination of a. carriage having a feed rack; a dash-pot device pivotally mounted and heving pinion; ineens for rocking said dash* pot- Idevice to move said ,inioninto or out of mesh with sei d rack andxnieans operated liy said pinion for continually' reciprocating a part of seid dash-pot dinii'ig the motion of the carriage in'cne direction.

7. ln e typewriting machine, the coinlii nation .of a carriage, a. step-hy-stop feed dcvice and e release device for said carriage; a dash-pot device; iind means whereby said carriage, When it is released, imparts a plu- I, ralityof to-inid-fro motionsio, e part oi" said dash-pot Ydevice during the run of the cnrriiige. i l

S'. in e. typewriting machine, the comintion of a carriage; a tehnlator device; e dashpot device including ato end fro moving part an d -mciins controlled by said tabuletor deriagc and throwing-seid dash-pot device into operation, seid part having e plurality of t0.-

a d :ish )ot rotar-ding device, ineens operated hy sain tehnletor mechanism for releasing said carriw'c from its stcp-hystcp feed devire gre; :i nd ineens controlled during thc motion or the cfnriagcinonc (li-- 9. ln a typewriting machine, thc combinfinil erinultniieoiisly connecting it with vice for siinultznicouslyreleasing said car and-fro motions during the run of the carriage. g

10. In a typewriting machine, the combination of a carriage a shaft adapted to be geared to said carriage; and a dash-pot device connected with said shaft byan eccentric and pitman; l

11. In a typewriting machine, the combination of a carriage having a feed rack; a

shaft having'a pinion adapted to mesh Withl said feed rack; a to'and fro moving dash-pot device connected with said shaft; and a tabulator mechanism adapted to move said inion into engagement With said rack an to raise said rack by said pinion to release the carriage, said dash-pot device having a plurality of to-and-fro motions during the run of' y the carriage.

1 2. In a typewriting"machine, thecombis nation of a carriage and a dash-pot device including a to .and fro moving part for controlling the movementof said carriage,said dashpot device having a vent at one end and a port that is opened at theend of a stroke.

13. In a-typevvriting machine, the combination of a carriage; a shaft adapted to be geared to said carr1age;a crank on said shaft;

.and a dash-'pot comprising cylinder and .a

piston, said pistonl'beng connected with said Icrank, and said crank belng located 1n a 4chamber, into which said cylinder opens at nected With said crank ;'an adjustable port opening into the otherend of said cylinder; and azport in said cylinder near the middle of its length, 'said chamber being tight enough to cause the air to be compressed therein by said piston.

15. In a typewriting machine, the combiination of a carriage a shaft adapted to be geared to said carriage; a crank on said shaft; a chamber in which said crank is located; a dash-pot 4cylinder opening at one end into said chamber; a piston in said cylinder; a transverse pinnl in said piston; a itman loosely mounted on said pin and sllidable along said pin to connectfit With said crank;

means for holding said pitman in position on said crank; and a cover-for said chamber.

16; In a typewriting machine, the combination of a carriage; a feed-rack movably mounted onsaid carriage; a' step-by-step device cpntrolling said feed-rack; a dash-pot.

device pivotally mounted in the frameof the machme; means for rocking said ,dash-pot device on its pivot and .thereby raising said rack to release the carriage from its step-by.-

step device and connecting said carriage With said 'dash-pot device; and means for continually reciprocating a part of said dash-pot device during the run of the carriage in one direction, i A

17. In a `typevvriting machine, the combination of a carriage; a ieed rack on said carriage; a step-bystep device cooperating With said feed rack; a dash-pot device pivoted to the frame of the machine; a pinion connected with said dash-pot device; a tabulator means whereby said tabulator, when `operated, rocks said dash-pot device, moving said pinion intoiengagement with said racl; and raising said rack toI release the carriage; and means operated by said pinion for cont-innally reciprocating' a part of said dash-pot device 'durmg the run of the carriage.

18. In a typewriting machine, the combination of a carriage; a eedracl; on said can riage;a step-bystep feed device coperating With said rack; a tabulator device comprising a series of stops movable to position to arrest the carriage; a universal bar lying in iront of said stops; an arm projecting from said universal bar; a tilting retardmg device pivoted on the frame of the machine and having a part in the pathof said arm, said retar-ding device comprising a pinion that normally stands below said rack and that is adapted, when said retarding device is tilted, to raise said rack to release the carriage; anda positioning tooth against Which said pinion normally rests. y

19. In a typewriting machine, the combi- 'Ilation of a carriage; a rack bar on said carriage; a tabulator device; and a retarding dcvice for retarding the motion ol" the carriage When released, said -retarding device 'conn prising a dash-pot cylinder and a chamber into which one end of said cylinder opens, a piston in sai d cylinder, a crank in said chainber connected with said piston, a shaft Qfor said 'crank having a pinion on its outer end, 'trunnions on which said cylinder and chamber may rock to move said pinion into and out ol engagement with said rack; and means whereby said tabulator tilts said retarding device on its trunnions.

therefor, a shalt arranged to be rotated by a part moving with the carriage, keyactuated means for connecting said shaft with said moving part and disconnecting said escapement devices, and a fluid-'pressure device for retarding the speed ol` the carriage connected with and operated by said shalt, said fluid pressure device comprising apart continui ally reciprocated by'said sha'l't'during the motion of the carriage in one direction.

21.A In a typewriting'machine, the combination with a carriage, of carriagesretarding meansincl-uding a snaft, arranged to be rotated by, the carriage, and an air-compressor comprising two cooperative parts,'.one of these parts being connected with andv operative by said shaft to .b e continually reciprocated thereby during the motion of the carriage in one direction, and one of them containing an air-chamber in which the other is coniined.

22. In a ty ewriting machine, the combi nation witht e carriage, of carriageretard ing means including a shaft arranged to be rotated by the carriage, and an air-compressor comprising two cooperative Darts, one of these parts being connected wit vand operative by said shaft to be continually reciprocated thereby during the motion of the carriage in one direction, and one of them containing an air-chamber in which the other is confined, said air-chamber having a vent.

.28. In a ty ewriting'machine, the. combination with t ie carriage, of carriage-retarding means including a shaft arranged to be rotated by thefcarriage, and an aircom.

pressor comprisin two coperative arts,

i one `of these parts eing connected wit and operative by saidshaft to be continually rei clprocated thereby during the motion of the ,carriage in one direction, and one of them.- vcontalmng an `a1rchamber 1n which the' other is confined, said air-'chamber having a vent, and one of said parts having onit means for regulating the size of thc'ven`t 24. In a ty ewritmg machine, the combi# nation with t ef carriage, of carriage-retard{ ing means including a shaftlarranged to be rotated by the carriage,V and an air-compressor comprising two. coperative parts,`

` nation with t e carriageglof lcarriage-re'tardi ing means `including a shaft arranged togb'e presser, comprising two cooperative, parts, one of, these parts containing an air-charnber having a vent, and the .other being confined in z,said air-chamber and bein Itiniially reciprocated thereby during the motion of the carriage. in one direction.

.f 26. In a ty ewriting machine,l the combination with the-carriage, of carriage-retardl'g means including a shaft arranged to be rotated by the'carriage, andan air-c 1iigcpgv presso'r comprislng two cooperative parit.

' Y one of these parts containing an air-chamber nahavinga vent, and the other being confined 'in said air-chamber andy being -eonnected with and voperative by said shaft to be con.

i connected'v f with and operative by said sha t to be con# erative by May A, D. 1,905.'

Atinually reciprocated thereby during Vthe motion of the carriage in one directionv and lone of said parts having on it `I`neansfor other part being confined in said air-chamber and being connectedwith and operative' bysaid shaf 7 l 28. In a'type iting machine, the combination with the carriage, of carriage-retarding means including a shaft, a pinion fast on the shaft, and an air-compressor comprising.

two'co erative parts, one 'of them consisting of a lock 'containing'v an air-chamber and having in it the bearing ofsaid shaft and being movable to engage the pinion with and to disengage it from the carriage, and the other part being confined in said air-chamber and eing connected with and oplerative/by said shaft, and said air-chamber aving avent'.

29.. yIn a t ewriting machine,- the combination'witl t e'carriage, ofca-rriage-retarding means including a-shafna pinion fasten the shaft, andan alleeonipressor comprising two co'perative parts, one of them consisting.; of a .block pivoted on a x'ed supportand.

containing an air-chamber and having in it the bearing ofsaid shaft and heilig movable on its pivotal axis toengage the pinion `with and to disengage it from the carriage, and

the 'other part being confined 1n said airchamber and being connected with and operative by said shaft.

' 30. In a t. ewriting machine, the combiu nation with t e carriage, ofcarriage-retarding means including a shaft., a pinion fast on the shaft, and an alr-compres'sor comprising two cooperative parts, one of them consisting of a block pivotcdon a' fixed support and containing 'an air-chamber ad'liavln'g in it the bearing of said shaft and being movable 'on its pivotalaxis to engage'the pinion with and to disengage it 4from the carriage, and

the other part being confined in said air- 'chamber and being connected Withand op# said shaft, and said `chamberhaw ing a vent. l Signed at Ilion, in the county of Herkimer, and State of New York, this 2nd day of 'GEORGE FREDERIGK BALLOU.- l Witnesses:

OsoAR Woonwsan, JosEPHTHELPs. 

